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14021243 = 17824779
BaseRepresentation
bin110101011111…
…001001111011
3222101100112022
4311133021323
512042134433
61220305055
7230115155
oct65371173
928340468
1014021243
117a07405
12484218b
132b9bcc2
141c0dad5
15136e698
hexd5f27b

14021243 has 4 divisors (see below), whose sum is σ = 14846040. Its totient is φ = 13196448.

The previous prime is 14021233. The next prime is 14021263. The reversal of 14021243 is 34212041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14021243 - 26 = 14021179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 824779 = 14021243 / (1 + 4 + 0 + 2 + 1 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14021233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412373 + ... + 412406.

It is an arithmetic number, because the mean of its divisors is an integer number (3711510).

Almost surely, 214021243 is an apocalyptic number.

14021243 is a deficient number, since it is larger than the sum of its proper divisors (824797).

14021243 is an equidigital number, since it uses as much as digits as its factorization.

14021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824796.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 14021243 is about 3744.4950260349. The cubic root of 14021243 is about 241.1360663660.

Adding to 14021243 its reverse (34212041), we get a palindrome (48233284).

The spelling of 14021243 in words is "fourteen million, twenty-one thousand, two hundred forty-three".

Divisors: 1 17 824779 14021243